Grader.



W. F. WAINRIGHT.

GRADER.

APPLIOATION IILED MAR. 19, 1914.

1 1 1 1 ,420, Patented Sept. 22, 1914.

Inventor,

Attorneys.

7H5 NORRIS PETERS ca. PHOTO-LITHO.. WASHINGTON D. Q

WILLIAM.F.WAI1\IRIGI1' T, or wlncnnsrnn, ItLINoIs- To all whom it may concern 1- Be. it known that I, WILLIAMlF. (V IN- RIGHT, a citizen ofthe United States, re'sid-j ing at NVinchest'er, infjthe county of .Scott and State of Illinois, have invented a new and useful Grader, of which the following.

is-a specification; v

chines particularlydesigned for use in road- 1 building, one of the objects of the invention This invention jrelates yto grading mabeingt'o provide a simple and durable'strucward.

ture of this character having means whereby it can be Another object is to provide the scraping member of which can be adjusted angularly relative to themain beam whereb-y.

the area covered by the machine can be. narrowed or widened. as desired.

A further object is to provide a grading machine which is-reversible so that the machine can. be drawn back and rorthalong one side of aroadso as to properly. crown or build up the road duringeach trip back and forth along "one side of. the road, thus saving the time which has heretofore been wasted in taking the machine back to the sary to grade one starting .point each time it has been necesside of aroad several times in succession. j i l A further object is to provide a grading machine having scraping blades adjustable relative to each other and which can be shifted out of active position so as to enable the carrying beam on which they are mounted to come into contact with the ground and smooth the surface, l

W'th the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the, details of construction hereinafter described and claimed, it) being understood that changes in the precise embodiment of the invention herein disclosed, can be made within the scope of what is claimed, without departing from the spirit of the invention.

7 5o a view of a grading machine constructed in ac- In the accompanying drawings the preferred form of the invention has been shown. In said drawings :'Figure 1 is a plan cordance with'thep resent invention. Fig.

l .2, is a side elevation thereof. Fig. 3 isan elevation showing the opposite side of the machine. 1 Fig. 4.- is a section on line AB kept in line whilebeingdrawn forj sgecificati onor Lttersl lifatentf Patented Sept.22,1914. Application fi ledMarch 19, 1914. Seria1No 825,8

Fig.1. Fig. 5 is a sec tion on line c n Fig. 1. l

- Referring tothe figures by characters of reiference 1 designates the: main beam of the grading; machine, the same being provided at ts front endwith a forwardly extending tongue 2 to :which is connected a clevis 3.

A bracket lqisattached to one side of the.

rear end portion of beam 1 and journaled'f withinlthis bracketis a diskt adapted to cut into the soil' jand thus prevent therear end portion of the ,beam from swinging later.-

ally out of line. during the forward movement of. the machine.

l Securedto the inner side of the beam 1 at itsliiront end is a hinged member 6 to which 1s hingedly connected the front end portion of an adjustable beam 7 converging rearwardly from the beam',1 'and provided at intervals with "inwardly; extending brackets 8 towhich are pivotally connected arms 9.

Additional; brackets 10 are secured to the inner side of the beam l and have arms 11 pivotally connected to them. .These arms 11 lapthe arms 9 and each of the arms 9 and 111s. prov ded, at its free end, with a collar 12. The collar on each arm extends around the opposed arm so that the said arms are thus held against lateral displacement relatlve to each other although capable of being adjusted longitudinally. Each arm 11 has a bolt 13 extending upwardly therefrom and into oneof a series'of openings 14: formed inthe adjacent arm 9. Thus it will be seen, that by removing the bolts 13, the

arms 9 and 11 canfbe adjusted relative to each other after which, by inserting the bolts 13 in the adjacent openings 14, the arms 7 can be held against independent movement. By thus adjusting the arms 9 and 11 the beam 7 is adjusted angularly relative to the beam 1.-

Upperand lower pivot bolts 15 are extended laterally from the rear end, portion of the beam 7 and pivotally mounted on each ofthese bolts is the rear end'portion of a scraping blade 16. Each blade is sub stantially equal in width to about one half of the beam 7 and each blade also extends preferably throughout the length of the beam .7. Bolts 17 are carried by each blade 16 and extend through slots 18 formed in the beam 7 L Thus it will be seen that by loosening the bolts 17, the blades-16 can be adjusted angularly about the bolts 15 and,

by tightening bolts 17 the said blades Will, be held against further movement. By adjusting the blades inwardly into contact with each other, their outer or active edges will be brought flush with or slightly past the upper and lower edges respectively of the beam 7, while by adjusting one or both of the blades outwardly, the active edge or edges thereof will be projected beyond the and the beam corresponding edges of beam 7 as shown,

. is-draw'n forward.'- The scraper blade will obviously engage the soil and deflect it laterally toward the center of'the road. If, after astretch of road has thus been treated, it is found that it is desirable to move the scraper again over the same stretch, "it merely becomes necessary'to adjust the other scraping blade outwardly beyond the beam 7 and then to reverse or invert the machine anddraw it back along'the same side of the road whereupon the action hereinbefore de-. scribed will be repeated.

It will of course be understood that where both sides of the road'need grading, it does not become necessary to invert the machine as the same can be drawn back along the opposite side of the road. l/Vhere only one side-'ofthe road requires grading, however, 1t has been found desirable to'employ a reversible machine such as descrlbed- After the road has been graded and it becomes desirable to smooth-it, the blades 16 can be adjusted together so as not to project beyond;th,e beam 7 after which the machine canbe drawn over the road the beam 7 caused to smooth "ofi 'the surface. Disk 5 will of course maintain the beam 1 in line under all conditions, thus adding materially to the efliciency of the machine.

. What isclaimed is-z- A road grading machine including a mainbeam, a draft device at .one end thereof, soil engagingmeans at the other'end for holding the beam against lateral displacement, a

beamliingedly connected to the'front end of the main beam and adjustable"angularly relative thereto, superimposed scraping i.

blilClGSPlVOtttllY connected at their rear ends to the rear end portion of the adjustable beam and adjustable angularly upwardly and downwardly to project their outer edges into or out of active positions said beam constituting a drag when the blades are out of active" position, said grading 1 machine being invertible'to bring eitlier ofgthe blades f into engagement with the soil. m I

In testimony that 1* claim vthe 'forege as my own, I have hereunto afiixed my sig nature in thepresence of two witnesses.

. WILLIAM FVWAIN RIGHT. Witnessesz j I I JOHN GLNEA'R, CHARLES H. CoUDET;

Copies of this patent may be obtained for five cents each, by addressing the Commissionerof l'atents. Washington,1). 0.? i i 

